Abrasive-wheel mounting.



No. 791,159. PATENTED MAY 30, 1905.

O. H. NORTON. ABRASIVE WHEEL MOUNTING.

APPLICATION FILED MAY18. 1904.

2 SHEETSSHEET l W/ TNE SSE 8 IN VE N TOR WM I ATTORNEY PATENTED MAY 30,1905.

C. H. NORTON. ABRASIVE WHEEL MOUNTING.

APPLICATION FILED MAY 18. 1904.

2 SHBETSSHEET 2.

ATTORNEY UNITED STATES Patented May 30, 1905.

PATENT OFFICE.

CHARLES H. NORTON, OF WORCESTER,

MASSACIIUSETTIS, ASSIGNOR TO NORTON GRINDING COMPANY, OF IVORCESTER,MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

ABRASIVE-WHEEL MOUNTING.

SPECIFICATION forming part of Letters Patent N 0. 791,159, dated May 30,1905. Application filed May 18 1904. Serial No. 208,526.

To all whont it may concern:

Be it known that I, CIIARLEs H. NoRToN, a citizen of the United Statesof America, residing at Worcester, in the county of W'orcester and Stateof Massachusetts, have invented certain new and useful Im )rovements inAbrasive-Wheel Mountings, of which the following is a specification.

The invention to be hereinafter described relates to emery-wheels, andmore particularly to the mounting of such wheels upon theircarrying-arbors or other instrumentalities. In one form of such mounting the emery-wheel is carried on a rotatable shaft or arbor to whichit is secured by means of collars, between which the emery-wheel isclamped. In such form of mounting it has been proposed to apply anelastic medium between the faces of the emery-wheel and collars; butsuch elastic medium is diflicult of application, deteriorates inelasticity by the constant pressure thereon, becomes seriously injuredand impaired by the oil or other lubricant, so that the pressure of thecollars on the emery-wheel varies under the conditions of use, andcracking of the wheel is liable to result.

\Vith these general defects in view the object of the present inventionis to provide a 0 mounting for the emery-wheel on its carrying shaft orarbor that will not only overcome these defects, but afford a yieldingthough inelastic bearing of the collars against the emery-wheel, preventslipping of the wheel between the collars, and hold the parts of thewheel from flying apart in case of rupture.

Having these and other objects in View, the invention consists,primarily, in providing a soft and yielding yet inelastic metal facingfor the emerywheel collars or flanges which shall bear directly upon thewheel and yield to accommodate itself to the irregularities thereofwithout resulting elasticity and in providing convenient means for at- 45 taching the soft-metal facing to the collars or flanges and otherfeatures, as will hereinafter be more fully described and thendefinitely pointed out in the claims.

In the drawings, Figure 1 is a sectional view showing an emerywheelmounting embodying one form of my invention. Fig. 2 is a like view of aslightly-modified form of mounting. Figs. 3 and 4 are detail face viewsof two forms of collars or flanges, parts being broken away and suchcollars or flanges being provided with recesses or cavities into whichthe soft-metal facing mayproject for holding such facing fixedly withrelation thereto.

Referring to Fig. 1 of the drawings,A represents any usual or ordinaryform of shaft or arbor for carrying and operating an emerywheel B, whichwheel may be of any usual construction in this class of devices. The enda of the shaft or arbor A is provided with a screw-thread adapted toreceive a nut a for securing the emery-wheel B and its clamping collarsor flanges to the shaft or arbor A.

In the present form of the invention as illustrated in Fig. 1 I haveshown one of the flanges C as provided with a sleeve portion 0, adaptedmm the usual bore or hole formed centrally in'the emerywheel B. Thissleeve portion 0 of the collar or flange C also has a suitable bearingat 0 upon the tapering end a of the shaft or arbor A and is made toretate with said shaft or arbor A by being fixedly secured in anysuitable manner-as, for instance, by the projection of the collar orflange engaging a corresponding cavity or recess in the part a of theshaft or arbor A. Of course it is understood that these details ofconnecting means may be widely varied. In the present form of the devicealso I have provided a washer a, adapted to engage by exteriorscrew-threads thereon the screwthreads (1, formed on the interior of anend cavity 0, formed on the collar or flange C. Against this washer (I;the nut a bears to i hold the collar or flange C in the proper positlonon lts shaft or arbor A; but other means I may be employed for thispurpose, as will be evldent.

Mounted so as to loosely ass onto the sleeve 0 of the collar or flange Lis the second collar or flange D, and in order that said 001- l thedevice it will be noticed that the collars lars or flanges C and I) mayrotate in unison or flanges C D are tapered in accordance the sleeve ofthe collar C has formed on its with the taper of the emery-wheel B andat exterior a longitudinal slot or opening 0', their inner surfacesareprovidedwith stepped 5 which is engaged by a pin (Z, extending fromreeessesf into which the soft-metal or lead 70 the collar or flange l).facing F is either run while in molten condi- In order that theemery-wheel B may be tion or forced by pressure in a mannercorresecurely clamped between the collars or i spending to that alreadydescribed for Fig. l. flanges C and l), the exterior portion of the f Itwill be evident,of course, that numerous IO sleeve 0 is provided withscrew threads 1: l modifications may be made in the form and 75 and anut E, having an internal screw-thread general disposition of parts andthat in the engaged therewith, so as to force the collars character ofdevice as shown by Fig. 2 the or flanges C and D toward each other andsetapering collars or flanges C D act as safety curely hold theemery-wheelB therebetween. devices to prevent the emery-wheel flying Theinner faces of each of the collars or apart should it become ruptured.8o flanges C and Dthat is, the surfaces next to From the constructionherein described it the emery-wheel B have each a facing F of will benoted that the yielding and inelastic a soft metal, such as lead, whichwhile yield metal facing for the collars or flanges can be ing incharacter possesses no elasticity and readily made fast to such collarsor flanges is not materially affected by the lubricant without anyseparate fastening devices, as 85 used in connection with the wheel,such as already explained, and that the soft-metal water, oil, and soon. This facing F, l preffacing can be trued up at any time tocorreerably form of lead; but it will be understood, spond to thesurface of the emerywheel. of course, that any metal having the charac-Such soft-metal facing presents a strong and teristics of lcad-namely,yielding, but not yielding yet inelastic bearing for the sides of 90elastic will fulfil the purposes in view. the emery-wheel, so that theparticles of the In order that the soft-metal or lead facing emery onthe surface of the wheel may be F may be fixedly secured to the faces ofthe come embeddcdinitwhen thenut is tightened. collars or flanges C andI), I preferably pro- Thus all slipping of the wheel is absolutely 3ovide such faces each with cavities which, as prevented, even in heavywork, nor is it nec- 5 shown in Fig. 1 atf, may be undercut ordoveessary to tighten the screw with any great tailed, and I may run thesoft metal into severity, as the connection between the soft thesecavities and on the faces of the collars metal facing andthe emery-wheelis such that While in a molten condition and thereafter such wheel iscaused to rotate with the col- 5 true up the surface, or since the metalis ofa lars or flanges, even when the nut is not 100 soft and yieldingnature I may force the cold tightened to its limit. This obviates undue,metal into such cavities, as will be well untightening of the nut, assometimes occurs in derstood by one skilled in the art. theelastic-faced collars or flanges which Of course it will be obvious thatvarious have been tried heretofore and frequently rcforms of cavitiesmay be provided in the sursulted in the breaking or rupturing of the 105faces of the collars or clamps O and D, and emery-wheel. By thesoft-metal and nontwo of such forms I have shown by Figs. 3 elasticfacings it is not necessary that the and 4. In the former these cavitiesare illussides of the wheel be exactly parallel nor need trated in theform of radial grooves, as F, the center hole of the wheel be anaccurate while in Fig. 4 they are designated as circular fit on theshaft, since the soft metal entering 1 10 holes or recesses F In eithercase, howthe surface of the emcry-wheel under the ever, the purposes ofperforations or openings slight pressure of the nut will hold the wheelserve to hold the soft-metal facing fixed with in proper position, andin case of ru ture durrelation to thc collars or flanges, and this ingoperation the lead facing ten s to cling without the addition of screwsor other sepato the surface of the emery-wheel and pre- 1 15 rateholding means. vent particles flying outward In Fig. 2 I have shown aslightly-modified Having thus described my invention, what form ofemery-wheel mounting in which the I claim, and desire to secure byLetters Patwheel B is shown tapering from its center ent, is

outward, and I have also disclosed a different 1. In a device of thecharacter described, 120

form of mounting on the shaft A of the 001- an emery-wheel, collars orflanges for securlars 0 D The shaft or arbor A in Fig. 2 is ing saidwheel in lace, said collars or flanges preferably provided with a collara against each having a so t, yielding, and non-elastic which the collaror flange C has a bearing metal facing.

after being placed upon the arbor or shaft A 2. In a device of thecharacter described, I 2 5 The emery-Wheel B in Fig. 2 may be proanemery-wheel, collars or flanges for securvided with a bushing b, and thecollar or ing said wheel in place, said collars or flan es flange D maybe forced toward the collar C I having recesses in a surface thereof,am? a by means of a nut a, screw-threaded to the i soft yet non-elasticmetal facing projecting shaft or arbor A In this modified form of i intosaid recesses.

3. In a device of the character described, the combination of anemery-wheel, an arbor or shaft for carrying the same, collars or flangesdisposed one on each side of said wheel, said collars or flanges eachhaving a soft yet non-elastic metal facing for engaging the sides of theemery-wheel, and means independent of the arbor for forcing the collarsor flanges toward each other to clamp the emery-wheel between thesoft-metal facings.

4. In a device of the character described, the combination of anemery-wheel, an arbor or shaft for carrying the same, collars or flangesdisposed one on each side of said Wheel, and each provided with surfacerecesses, a soft yet non-elastic metal facing for each of said collarsor flanges and engaging the recesses therein, and means independent ofthe arbor for forcing said collars or flanges toward each other to clampthe emery-Wheel between said soft-metal facings.

5. In a device of the character described, the combination of anemery-wheel, an arbor or shaft for carrying the same, collars or flangesdisposed one on each side of said wheel, and each provided with undercutsurface recesses, a soft yet non-elastic metal fac ing for each of saidcollars or flanges and engaging the recesses therein, and means forforcing said collars or flanges toward each other to clamp theemery-wheel between said soft-metal facings.

6. In a device of the character described, the combination of anemery-wheel, an arbor or shaft for carrying the same, collars or flangesdisposed one on each side of said emery-wheel, one of said collars orflanges having a sleeve on which the other collar or flange is mounted,each of said collars or flanges having a soft yet non-elastic metalfacing, and means for forcing one of said collars or flanges toward theother to clamp the emerywheel between the soft-metal facings.

7. In a device of the character described, the combination of anemery-wheel, an arbor or shaft for carrying the same, collars or flangesdisposed one on each side of said emery-wheel, one of said collars orflanges having a sleeve on which the other collar or flange is mounted,each of said collars or flanges having a soft yet non-elastic metalfacing, said collars or flan es being connected to retate in unison, anmeans for forcing one of said collars or flanges toward the other toclam the emery-wheel between the softmeta facings.

8. In a device of the character described, the combination of anemery-wheel, an arbor or shaft, collars or flanges having soft yetnonelastic metal facings disposed one on each side of said wheel, one ofsaid collars or flanges having a sleeve fitted to said arbor or shaftand on which the emery-wheel is directly supported, a screw-thread onsaid sleeve, and a nut for clamping the soft-metal facin gs of thecollars against opposite sides of the emery- Wheel.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES H. NORTON.

Witnesses:

ALDUs O. HIGGINS, M. A. (100KB.

